Metal-basket-corrugating machine



Janfiy 117, 1923- 310462457 F. T. WERNHMONT ME'JEAL BASKET CORRUGATING MACHINE Filed Jan. 12. 1921 m am" a lei-third? FRANK 'i. WEBNIIJIONI, F CEDAR RAPIDS, IOVJA, ASSIG'NOR TO THE HALL TMANUFAC- TUBING COMPANY, OF CEDAR RAPIDEi, IOVJA.

IdETAL-BASKET-COBRU(RATING IMAGE-ZINE.

Application filed January 12, 1821.

To all whom it may concern:

Be it known that l, FRANK T. FVnnNrMcuv-r, a citizen of the United States, residing at Cedar Rapids, in the county of Linn and State of Iowa, have invented certain new and useful Improvements in Metal-Basket- Corrugating Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the manufacture of corrugated sheet metal baskets, and the object of the invention is to provide a simple and efficient machine for performing the operation of corrugating the sides of the cylinder which forms the body of the basket.

In the manufacture of metal basket fluted vertically, the fluting of the cylindrical body 0 has hitherto been done-mainly by hand, by means'of a heavy grooved swage hung on a pivot, and a fixed swage-block provided with a tongue to match the movable memher, and crimp the metal inwardly. This method, while giving good results, was very tiresome to the operator, and capable of but a limited production. The machine embodying this invention, though a development of the manual device, is adapted to operate at a much higher rate of speed, and with the expenditure of comparatively little effort on the part of the operator.

In the accompanying drawing, forming a part of this specification, Fig. 1 is a side view in perspective of a machine embodying the invention. Fig. 2 is a similar illustration from the opposite point of View. Fig. 3 is a fragmentary side elevation, partly in section. showing in detail the principal working parts of the machine. Fig. l-

is a fragmentary elevation of parts as seefrom the right end of Fig. 3.

Fig. 5 is a fragmentary elevation illustrating in exaggerated proportions the eecentricity of the crank-disk.

A heavy bed-plate 5 is provided at one end with upstanding bearings 6 for a crossshaft 7. To one end of this shaft is fixed a disk 8, provided with a wrist-pin 9 carrying a roller 10. To the other projecting portion of the shaft is secured a clutch 11, of the tripping, single revolution type, the details of which need not be described, as the clutch is of well known construction.

Adjacent to the clutch is a flywheel pulley Serial No. 436,645.

12, which normally runs idly on the shaft, being disengaged from the clutch. For this purpose a disengaging member 13 connects by a link 1% with a foot-lever 15, which is lifted automatically by a spring 16. When the foot-lever is depressed the clutch engages automatically, and while so depressed the machine runs continuously, but stops at the proper point when the foot-lever is released.

About in the middle of the offset bedplate, and extending to the front end of it is attached a pair of cheek-plates 17, the elevated parts of which, 18, serve as bearings for a swage-bar 19. These cheek-plates form a part of the fixed corrugating memher, the swage-block hereafter described. The rear portion of this bar extends to the middle vertical line of the disk, and lies in the path of the roller thereon as the disk revolves. in Figs. 1 and 2 the swage and bar are shown in the normal, or stopped position, and elevated at an angle, so as to permit movement of the cylinder to be crimped. The other, forward end of the bar carries the swage 20, suitably secured to the bar by bolts 21. The inner end of the swage, as also of the swage-block, is curved at 22, so that the corrugating of the cylinder gives it the proper inward curve and contraction at its inner end, which becomes the lower part of the basket. The bottom of the swage is grooved at 20, and this groove coincides with a tongue 23 forming the central portion of the swage-block. This might, of course, be formed integral with the sides of the swageblock, but in practice it is made so arate therefrom, and clamped between the cheek-plates by bolts 24:. The hole for the outer bolt, at least, is slotted, as shown, so that this outer end of the tongue may be adjusted. and the length of the flute be thus regulated to the requirements of different sizes or types of baskets. Raising the outer end of the tongue shortens the flute, and lowering it lengthens the flute, as will be evident, by reason of the limitation of the movement of the swage at its inward, curved part by the adjacent curve of the tongue.

In Figs. 3 and 4 the basket cylinder or blank 25 is shown in position for crimping. It will be noted that the body of the blank rests on the swage-block, and the swage tilts vertically inside it. The swage may be heavy enough to give the proper impression by gravity alone, but in practice it is preferred to give a quick, smart movement to the swage by means of a tension spring 26 stretched between the bar at 19 and a goose neck 27.

The rear end of the bed-plate may be supported by iron legs 28 (with a wooden block 29 preferably interposed), but the front end, which carries the swageblock, and so takes the impact of the vibrating swage, should be suitably cushioned from the floor, whatever the latter may be. A. simple mounting is shown, being a. stout wood block 30, represented as resting on a cement floor, and bolted thereto by brackets 31.

In practice the crimping requires at least two successive swagings. F or the first round the blank is set so that about one-half of the final curvature is formed. To steady the blank, and to give uniformity to the initial crimping, guides 82 are provided to engage the outer rim of the basket blank. These guide fingers are attached to parallel slide bars 33, connected by bridge-plates 34C, and mounted slidably in guides 35 mounted on suitable legs 36. The slide-bars may be moved endwise, and set at any desired position, as by set-screws 37, according to the depth of the basket blank.

After the first round, the blank vancd inwardly to position for final ing. As a guide for its inner end, and to facilitate the intermittent turning of the basket blank, a guide-plate 38 is attached to one of the cheek-plates 17, as shown in Fig. 1.

Provision is made for stopping the revolution of the bar-tilting disk and roller at a certain point in each case, so that the swage shall normally stand elevated. This consists of a brake-shoe in the nature of abracket 89, shod on-its upper, concave'sidc with leather 40, or the like, to engage the periphery of the disk at the proper point in its revolution, which is illustrated in Fig. 2.- The brake-bracket is fixed in position, as by bolts 4-1, and the braking contact is effected at the proper time by boring the disk a is ad crim pvery little off its center, as shown in exaga gerated degree in Fig. 5. The disk is thus made slightly eccentric. and being in contact with the brake during but a small part of its revolution makes but little demand on the power required to operate the machine.

Referring to Fig. 3 it will be seen that the construction is such as to cause the lift of the swage-bar with the minimum of shock, the roller engaging the tail of the bar when at the top of its movement, and traveling thence along the bar in a gradually accelerating tilting action until about to leave it. -The released swage springs instantly to swaging position, with a smart blow, like that of a heavy hammer. This admits of the machine running at a comparatively rapid speed, which is sometimes desirable.

In the operation of the machine as herein shown, the blank is fed forward step by step by hand. At a moderate rate of speed an expert operator will allow the machine to run continuously, advancing the blank between blows. In the case of less skillful operators the machine is unclutched at each impression, and in such cases a higher speed is desirable.

Having thus described my invention, I claim:

1. In a metal-basket corrugating machine, the combination of a fixed swage-block com posed of a pair of cheek-plates and an interposed tongue pivotally attaehedat one end, and adjustable at the other end, an undergrooved swage in register therewith a tiltbar to which the swage is attached, and a revolving crank-wheel adapted to lift said bar at each revolution.

2. In a metal-basket corrugating machine, having av tilting swage and means for actuating the same automatically, a gauge for the outer end of the basket blank, comprising a pair of adjustable, parallel bars adapted to partially support the blank, and attached fingers to engage the outer edge of said blank.

In a metahbasket corrugating machine, a boo-plate provided withshaft-bearings, a crank-shaft mounted therein, and having a crank-wheel provided with a radial roller, a swage-block fixed to the bed-plate, a tilting swage-bar and swage co-operating therewith. and actuated by said, roller, and a cushioning support for the bed-plate under the swage. as a wooden block, substantially as set forth.

41. In a metal-basket corrugating machine, a fined swage'block, a tilting bar provided with a swage to register with the swageblock. a rotating crank-wheel provided with radial roller engage and tilt the bar, and a brake to engage said wheel and stop its revolution. with the swage uplifted.

5. In a metalbaskot corrugating machine having a fixed swage-block, a tilting swage cooperating therewith, a crank-wheel adapted to tilt said bar, a carrying shaft set slightly eccentriceto the periphery of said wheel, and a fixed brake to engage said wheel. at its longer radius, and stop it with the swage uplifted. 4

In testimony whereof I affix my signature in presence of two witnesses.

FRANK T. WERNIMONT. lVitnesses:

J. M. ST. JOHN, O. A. KEARNEY. 

